package com.highdatas.mdm.controller;


import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.baomidou.mybatisplus.plugins.Page;
import com.highdatas.mdm.entity.Flows;
import com.highdatas.mdm.entity.TUser;
import com.highdatas.mdm.pojo.ActivitiBusinessType;
import com.highdatas.mdm.pojo.ActivitiStatus;
import com.highdatas.mdm.pojo.CodeMsg;
import com.highdatas.mdm.pojo.Result;
import com.highdatas.mdm.service.IFlowsService;
import com.highdatas.mdm.util.DbUtils;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.runtime.ProcessInstance;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.List;

/**
 * <p>
 *  前端控制器
 * </p>
 * @description 流程实例业务接口
 * @author kimi
 * @since 2019-12-16
 */
@RestController
@RequestMapping("/flows")
public class FlowsController {
    @Autowired
    IFlowsService flowsService;

    @Autowired
    RuntimeService runtimeService;

    /**
     *
     * @description:  分页获取流程实例
     * @param pageno 页数
     * @return: 流程实例
     *
     */
    @RequestMapping(value = "/{pageno}", method = RequestMethod.GET)
    public Result<Page<Flows>> getAll(@PathVariable int pageno, HttpServletRequest request) {
        //获取每页数据量
        String pageSize = request.getParameter("pageSize");
        if (StringUtils.isEmpty(pageSize)) {
            pageSize = "15";
        }
        EntityWrapper<Flows> flowsEntityWrapper = new EntityWrapper<>();
        //筛选-- 开启用户
        String userId = request.getParameter("userId");
        if (!StringUtils.isEmpty(userId)) {
            flowsEntityWrapper.eq("user_id", userId);
        }
        //筛选--状态
        String status = request.getParameter("status");
        if (!StringUtils.isEmpty(status)) {
            flowsEntityWrapper.eq("status", status);
        }
        Integer size = Integer.valueOf(pageSize);
        Page page = new Page(pageno, size);
        Page<Flows> menuPage = flowsService.selectPage(page, flowsEntityWrapper);
        //获取分页后的流程实例
        List<Flows> records = menuPage.getRecords();
        List<Flows> recordsStr = new ArrayList<>();
        for (Flows flows : records) {
            //更新状态中文名给前端
            flows.setBusinessTypeStr(flows.getBusinessType().toString());
            TUser userById = DbUtils.getUserById(flows.getUserId());
            //查询用户的名称给前端
            flows.setUserName(userById.getUserName());
            recordsStr.add(flows);
        }
        menuPage.setRecords(recordsStr);
        return Result.success(menuPage);
    }
    /**
     *
     * @description:  By 用户删除流程
     * @param userId 用户id
     * @return: 是否成功
     *
     */

    @RequestMapping(value = "closeByUser/{userId}", method = RequestMethod.GET)
    public Result closeByUser(@PathVariable String userId, HttpServletRequest request) {
        Wrapper<Flows> user_id = new EntityWrapper<Flows>().eq("user_id", userId);
        //By user查询流程
        List<Flows> flows = flowsService.selectList(user_id);
        for (Flows flow : flows) {
            //循环删除流程以及对应的流程信息
            closeById(flow.getId());
        }
        return Result.success(null);
    }
    /**
     *
     * @description:  通过id删除流程
     * @param id flows的id
     * @return: 是否删除
     *
     */
    @RequestMapping(value = "close/{id}", method = RequestMethod.GET)
    public Result close(@PathVariable String id, HttpServletRequest request) {
        return closeById(id);
    }

    /**
     *
     * @description:  通过id删除流程
     * @param id flows的id
     * @return: 是否删除
     *
     */
    private Result closeById(@PathVariable String id) {
        //通过id获取flow信息
        Flows flows = flowsService.selectById(id);
        if (flows == null) {
            return Result.error(CodeMsg.ERROR_PARAMS_NOT_MATHED);
        }
        //获取流程id
        String workflowId = flows.getWorkflowId();
        //获取activiti流程实例
        ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(workflowId).singleResult();
        if (processInstance != null) {
            //删除流程
            runtimeService.deleteProcessInstance(workflowId,"终止流程");
        }
        //设置状态
        flows.setStatus(ActivitiStatus.close);
        if (!flows.getBusinessType().equals(ActivitiBusinessType.exists)) {
            /*调起流程结束后的动作*/
            flowsService.aduitFinish(flows);
        }
        //更新数据库信息
        boolean update = flows.updateById();
        if (update) {
            return Result.success(flows);
        }else {
            return Result.error(CodeMsg.UPDATE_ERROR);
        }
    }
}